Hey guys , I’m px4 beginner needing help to understand the best way to build up a drone GPS-denied I was looking the pipeline between PX4 and ros2 humble and how to use the visual_odometry topic to send data from fast_lio to px4 . But I tested using gazebo simulation (with 3d lidar data) , however …

Hi ! Not an expert in px4 nor in LIO, but I had this problem too. In my case it was the velocity estimate that was off (due to vibration). I increased noise parameters (PX4), and fixed the velocity estimate (LIO). (still have vibration issue though). I found this by checking the log, specifically…

Integration of px4 with fast_lio

PX4 Autopilot

OLKI9653 March 18, 2026, 11:28am 3

Did you test with external IMU? I’m with this question in my mind , because those I could try use own filter.

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Integration of px4 with fast_lio

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